From Eureka's FB page:
New Announcement! ONCE UPON A TIME IN CHINA TRILOGY, Tsui Hark’s dazzling kung-fu trilogy starring Jet Li, will be released as part of the Eureka Classics range on Blu-ray from 26 November 2018, sourced from brand new 4K restorations and presented in a Limited Edition 4-Disc Box Set featuring a Collector’s Booklet. Available to PRE-ORDER now http://po.st/4jtepf

Tsui Hark’s phenomenal ONCE UPON A TIME IN CHINA trilogy finally arrives on Blu-ray in the UK from brand new 4K restorations! Starring Jet Li as the real life Cantonese folk hero, Wong Fei-hung, a physical embodiment of traditional Chinese values and moral incorruptibility, this martial-arts epic charts China’s transition into the modern-world as it gradually abandons its old traditions and begins to accept the inevitable encroach of Western cultures.

ONCE UPON A TIME IN CHINA – In 19th century Canton, Wong Fei-hung battles ruthless imperialist forces determined to subjugate his country and enslave his people, leading to a climactic fight sequence still regarded as one of the best ever filmed.

ONCE UPON A TIME IN CHINA II – Wong Fei-hung faces off against the White Lotus Cult, a dangerous xenophobic group seeking to drive all European influence out of China, as well as a corrupt military officer, played by Donnie Yen in his breakthrough role.

ONCE UPON A TIME IN CHINA III – Wong Fei-hung travels to Peking and is forced to enter a martial-arts contest in order to prevent an assassination attempt against a prominent Chinese diplomat who wants to showcase traditional Chinese martial-arts, and restore national pride.

With action sequences choreographed by the legendary Yuen Woo-ping, the Once Upon a Time in China series is a glorious high-point in martial-arts filmmaking, and Eureka Classics is proud to present Tsui Hark’s original trilogy, as well as ONCE UPON A TIME IN CHINA AND AMERICA (which saw Jet Li return to the Wong Fei-hung role after a four-year gap) for the first time on Blu-ray in the UK in a special Limited Edition 4-Disc Box Set loaded with extra content.

ONCE UPON A TIME IN CHINA TRILOGY (Eureka Classics) Limited Edition 4-Disc Blu-ray Box Set available to PRE-ORDER now http://po.st/4jtepf

Features:

Special Limited Edition Box Set
1080p presentations of all three films, sourced from brand new 4K restorations and making their UK debuts on Blu-ray
Original Cantonese audio tracks (original source audio tracks and restored 5.1 options available)
Optional English audio tracks | Optional English subtitles
Once Upon a Time in China and America [100 mins, HD] – the final chapter in the Once Upon a Time in China series, with Jet Li making a triumphant return to his most iconic role
New audio commentaries on Once Upon a Time in China I-III by martial-arts cinema expert Mike Leeder
A new video essay by Travis Crawford
New Interviews with key Cast & Crew (more info TBC)
The Legend of Wong Fei-Hung [48 mins] – a three-part featurette on the legendary folk hero
Archival interview with actor and Shaw Brothers veteran, Yen Shi-kwan [10 mins]
Archival interview with Jet Li [10 mins]
Archival interview with Donnie Yen | Archival Q&A with Jet Li [10 mins]
Archival interview with director Tsui Hark [23 mins]
Archival interview with actor John Wakefield [11 mins]
Making of Once Upon a Time in China and America [25 mins]
Stills Galleries
Trailers
ALL EXTRAS SUBJECT TO CHANGE
Box set exclusive – Collectors booklets featuring new essays, and an abundance of archival material and ephemera

I don't think I've seen OUATICAA, can't remember. Think I read it gave Jackie ideas for Shanghai Noon.
Looking forward to this set, if so much care and attention is spent on it (original soundtracks, good subtitles and image)